Sensorex EM805 Smart modules (4-20mA or MODBUS/RS485) for S8000 Series

Overview

The EM805 is our most cost-effective solution for connecting our S8000 series pH and ORP sensors to a PLC or SCADA system. This small electronic module functions as a blind ORP transmitter with a 4-20mA or MODBUS/RS485 output. No additional instrumentation is required to condition the sensor signal to be read by your PLC or SCADA. It can also be used to pair Sensorex sensors with any controller that has a 4-20mA or RS485 input card. Blind 4-20mA or MODBUS/RS485 module for connecting ORP sensors to PLC or SCADA Input Voltage Options: 12V DC – MODBUS only 24V DC – 4-20mA & MODBUS Small form factor saves valuable panel space Compatible with S8100 submersion pH and ORP sensors Compatible with PT1000 RTD temperature compensation

Specifications

Documentation

Specifications reproduced from the manufacturer's published product information (sensorex.com), retrieved 18 August 2026. Sensorex is a trademark of its owner. Confirm all specifications with ForeverPure before purchase.